Combined altitude-gage and thermometer.



R. J. SHA-NK.

COMBINED ALTITUDE GAGE AND THEEMOMETEE.

APPLICATION FILED AUG.7, 1911.

1,031,679., Patented July 2,1912.

hurrah STATES PA ENT oFmoE.

REUBEN J. SHANK,-OF DES MOINES, IOWA.

ooiviisrnnn ALTITUDE-GAG AND THERMOMETER.

specification of Letters ra Patented'July 2, 1912.

' Application filed August 7, 1911. Serial No. 642,650.

To all whom it may concern:

.Be it known that I, REUBEN J. SHANE, a citizen of the United States, residing at Des Moine's, in the county of Polk and State of Iowa, have invented a certain new and useful Combined Altitude-Gage and Thermometer, of which the following is 'a specification.

Heretofore altitude gages and temperature thermometers have been attached to boilers in a hot water heating plant at separate'pointsthereon requiring a double tappingofthe boiler wall. A fitting or attachment whereby both may be secured to {the boiler through a single tapping is desirable. I The object of my invention is to provide a device of simple, durable and inexpensive construction that may be readily, quickly and easily applied to a boiler of a hot water heating plant or the like, by unskilled persons, without danger of breaking or injuring the delicate mechanism thereof when thus fitting the same to a boiler. ;25 I

"this kind, which when properly fitted, will A further object is to provide a device of perform both the function of an altitude gage and 'a' thermometer combined in the same device.

My invention, consists in certain details,

.in the construction, arrangementand combination of the various parts of the device,

whereby the objects contemplated are attained, as hereinafter more fulllyrset forth,

pointed out in my claims and iu tratedf-in the accompanying drawings, in 5 re 1 shows a front elevation of a small section' of a boiler wall equ pped- Wltl'l- Figu my improved attachment with an' altitude gage and temperature thennometersecured thereto. Fig. 2 shows a vertical, sectional view throu h my attachment. Fig; 3 shows an inverted, plan view of the attachment,

,. and Fig. 4 shows a sectional view ofa .part

of the face of the altitude. gage showing the groove therein and the temperature thermometer conta ned in said grooves.

I In the accompanying drawings, I have used the reference numeral 10 to indicate an altitude age of ordinary construction in complete Emu read for use and including a ng of them an rm .t P

.for oontro :the opening 21.

erably provide on the face of my gage a groove 11 designed to receive the temperature thermometer 12. The temperature thermometer 12 may be curved, as shown in Fig. 1. The scale for temperature may he indicated on the face of the altitude gage. The

temperature'thermometer emerges from. the

case of the altitude gagethrough an opening 13. Extending downwardly from the lower side of the casing of the altitude gage, is an extension 15, screw threaded at its lower end.

My device also comprises a fitting 16, which may be cast complete in one piece, and which has a screw-threaded portion 17 near its lower end designed to be received in the screw-threaded opening of a boiler 18. The

central portion of the fitting 16 extends downwardly below the screw-threaded portion 17 forming an extension 19. In the fitting 16 is a screw-threaded extension 20 designed to receive the screw-threaded end of the extension 15 on the casing of the altitude gage. A passage way 21 extends through the part 20 and communicates at its upper end with the hollow extension 15 and at its lowerend with the interior of the boiler. A smalleii opening 21' communicates fwith-the lower end of said screw threaded.

opening and also with the lower end of the body 16. It will thus be seen that the open-- ing 21 communicates with theJiiterior of the boiler when the attachmen'fiE'is installed. The downward extension 15"ofnthe altitude gage is provided with a centralflongitudinal opening 22 which communicates with the mechanism of the altitude gage and when the extension 15 isscrewed into the screw threaded \openmg'of the body 16 the opening 22 communicates with the opening 21.- The body/16 is rovided with a shut-off valve 23 liihg the passage of water. through" 'ssembling my attachment and fitting -;it to'a'boiler, I remove the glass frontfrom the altitude gage and screw the extension into the fitting 16. I then place the thermometer in the chamber and replace the glass front on the altitude gage. The attachment is then ready for installation and may be fitted to a boiler wall 18, of if an operator thinks there may be danger of breaking the delicate mechanism of the alt-itude gage, or-of breaking the thermometer during the operation of screwing the device into a boiler,'he may readily and easily obviate such danger by removing the fitting from the altitude gage and then screwing the fitting alone intov the boiler. After the fitting has been firmly and securely screwed into the boiler, theoperator then takes the altitude gage and screws the extension 15 thereof into the extension 20? of the fitting. This operation can easily be performed by hand as the-casin of the altitudegage can be readily and easily grasped by an operatorfor this purpose. I After this has been done the thermometer may be, very readily and easily placed in position, it" being understood that when the casing of the altitude gage is screwed into thefitting it shall be turned around to position where the openving in the casing of the'altitude gage will register with the'chamber -20 of the fitting.

j 'It will be seen that when my improved at"-- tachment is usedthe altitude-of the water within the 'oiler where the temperatureof the interior of the boiler will be accurately indicated, v

Among the advantages offmy invention is the great economy afiected thereby, first, in v the original 'cost of construction of thedevice and second, in the great saving in the time required by a plumber in fitting -In device to a'boiler. At the present time,-1t is customary to equip the boiler of a. hot water heatingplant'with an altitifde gage having an independent casing of its own and secured to the boiler at one point, and also with a thermometer-having an independent case of its own and secured to the boiler at another point. In my improvement, the expense of the case of the thermometer is entirely avoided, for-the case of the altitude gage is made to serve the double function of taking both the altitude gage andthe thermometer, and substantially no additional expense is incurred in the manufacture of my, improved device by including the case of the thermometer in the caseof;

the altitude gage." However, a greater economy is efl'ected in the time required by an operator in attaching my improved de-,

vice to a boiler forwith the use ofa's'eparatecasing for each of these instruments, it is necessary for. the operator totap the boiler at two places and then he must screw both the case of the altitude gage and the case of the thermometer, into these two separate openings. With my improved device. only one opening need be formed -in the boiler and the entire device may be screwed into this one opening. Another advantage is that with my improved'device, the operator may if he desires detach the fitting and the thermometer tube from the device and then screw the fitting into the boiler independently. While this is being done, there is absolutely no danger of injuring the delicate mechanism of the altitude gage nor of breaking the thermometer tube, then after the fitting has been firmly screwed into cent to the extension, a fitting, provided with a screw-threaded portion to bescrewed into a boiler, said. fitting having a chamber position without danger jtherein open at its to and closed at its hot 'tom,a lateral extenslonon' the fitting having a screw-threaded upper end to receive the extension on the said casing, and also having a passage-way therein extended from the .top of the lateral extension toa point below the screw-threaded portion of the fitting, digned to permit the passage of liquid from'a boiler to the altltude gage, and a thermometer tube inserted through theo 'ening in the casing and extended ifito the c amber in the fitting.

2. A device' of the class described, com- 'pr-isingan altitude gage including a suitable casing having ahollow screw-threaded extension and also having an opening adjacent to the extension, a fitting, provided with a screw threaded portion to be screwed into a boiler, said fitting having a-chamber therein open atits top and closed at its bottom, a lateral extension on the fitting having a screw-threaded upper end toreceive the extension on the said casing, and also having a passage-way therein extendedfromthe top of the lateralextension to a point below the screw-threaded portion of the fitting, designed to permit the passage of liuidfrom i ar'boiler to. the altitude gage, an a the'r mometer tube inserted through the opening with a valve to control the passage-Way in the casing and extended into the chamber therein, for the purposes stated.

in the fitting, the said altitude gage being Des Moines, Iowa, July 22, 1911. provided With a dial having a groove there- REUBEN J. SHANK. in to receive the thermometer tube and also Witnesses:

having indicating marks adjacent to said M WALLACE,

groove and the said fitting being provided W. A. LOFTUS. 

